Static liquid level based liquid level alarm switch detection method and alarm line calibration method

A liquid level alarm and switch detection technology, applied in the direction of liquid/fluid solid measurement, measuring device, test/calibration device, etc., can solve problems such as easy deflection or unbalance, increase intermediate process, and unreliable measurement results, etc., to achieve Easy operation and high accuracy of measurement results

Active Publication Date: 2018-02-16
CHONGQING MATERIALS RES INST
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  • Claims
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Problems solved by technology

[0003] Manually moving the float of the liquid level alarm switch as the detection method of the liquid level alarm switch and the calibration method of the alarm line cannot intuitively reflect the situation that the float floats on the liquid surface; and by first drawing the liquid level line, and then measuring The calibration method of the alarm line, on the one hand, increases the intermediate process of calibration, and its measurement results are unreliable; The individual differences of the alarm switch, the ups and downs of the floats in the liquid are not necessarily the same, various reasons lead to a large error in the measurement results

Method used

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  • Static liquid level based liquid level alarm switch detection method and alarm line calibration method
  • Static liquid level based liquid level alarm switch detection method and alarm line calibration method
  • Static liquid level based liquid level alarm switch detection method and alarm line calibration method

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Embodiment 2

[0027] See attached figure 2 , The distance measuring device described in this embodiment adopts a ruler 62 . When the distance measuring device adopts a vernier caliper, a small hole that enables the ruler to pass through the liquid surface of the transparent container below can be set on the mounting frame. Other technical features of this embodiment are the same as those of Embodiment 1.

Embodiment 3

[0029] See attached image 3 , The distance measuring device described in this embodiment adopts a laser length measuring instrument 63 . When the distance measuring device adopts a laser length measuring instrument, one deck of reflective paper 7 floats on the liquid surface of the container. Other technical features of this embodiment are the same as those of Embodiment 1. When the position of the alarm line of the liquid level alarm switch is reached, that is, the switching state of the liquid level alarm switch is switched, the distance measuring device is used to automatically measure the calibration parameters of the alarm line of the liquid level alarm switch, and the measured liquid level alarm switch alarm line The calibration parameters are compared with the standard value, and the detection result is output to the alarm device, which is prompted by the alarm device. The distance measuring device is installed on the mounting frame of the vertical lifting device.

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Abstract

The invention discloses a static liquid level based liquid level alarm switch detection method and alarm line calibration method. The method includes that quantitative liquid is filled in a liquid storage container, and a float of an installed liquid level alarm switch to be detected floats in the liquid; a drive device drives the liquid level alarm switch arranged on an installation rack to riseor drop so as to drive the float of the liquid level alarm switch to rise or drop; when a position of an alarm line of the liquid level alarm switch is reached, i.e., an opening / closure state of the liquid level alarm switch is changed, a vertical lifting device is automatically or manually controlled to stop rise or drop; a distance measurement device is used to measure a calibration parameter ofthe liquid level alarm switch alarm line. The static liquid level based liquid level alarm switch detection method and alarm line calibration method can visually detect if the liquid level alarm switch works normally or not, can accurately calibrate a position of the liquid level alarm switch, is high in accuracy, and is easy and fast to operate.

Description

technical field [0001] The invention relates to the field of liquid measurement, in particular to a liquid level alarm switch detection method based on a static liquid level and a calibration method for an alarm line thereof. Background technique [0002] For the detection method of the liquid level alarm switch, in the prior art, the detection is mainly by manually moving the float of the liquid level alarm switch as the detection standard, and the calibration method of the liquid level alarm switch alarm line is to first place the liquid level alarm switch Put the float into the liquid, draw the liquid level line on the float based on the floating degree of the float, and then manually move the float of the liquid level alarm switch to the position that just alarms, and use a distance measuring device (usually a ruler ) Measure the distance between the liquid level line of the float and the calibration reference plane, and use it as the calibration parameter for the alarm ...

Claims

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Application Information

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IPC IPC(8): G01F25/00
CPCG01F25/20
Inventor 申超张忠模赵彦胡轶魏小明唐光明杨鑫王剑星
Owner CHONGQING MATERIALS RES INST
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